Automobile heater



Nov. 11 92 J. F. GOETZ AUTOMOBILE HETER s Sheets-Sheet 2' IN V EN TOR.

A TTORNEY'5 J. F. GOETZ AUTOMOBILE HEATER N ov. 11, 924. 1,515106 -Filed Ma.y 28. 19235 5 Sheets-Sheet 3 I II ATTORNEYS.

atentetlNov. u, 1924.

r T!TED STATES PATENT OFFICE! JULIU'S F. GOETZ, O]? HBTFOBD, WISOONSIN.

AUTOMOBILE HEATER.

Application flled May 2s, 192a. Serien No.641,956.

drawings, whi b are a part of this specifica'ztion.

This invention rela.tes to improvements in automobile heaters, and has for its principal object to provide a device of this chara0ter which is especially adapted for heating the front-portion of an automobile;

A further object of the ihvention is to provide a heater which is primarily, al-

- though not solely, intended f0r heatingthe portion of an autor'nobile adjacent the drivers seat, from the exha11st gases from the motor. l

- A still further object of the invention is to provide a heat er of the dass described in which the said exhaust gases gare conducted .to a point adjacent the drivers seat, at which point a large portion of their heat units is extracted and radiated 120 the surrounding air.

A still further object of the invention is so. -to provide a heater of the dass described which will be simple'in construction, 00mparatively inexpensive to mmufacture an l install ancl more eflicient in use tl'1an th'oska which have been heretofore prdposed.

Withthe above and other objects in view which will zip-peara's the descriptioh pro-- ceeds, the invention oonsists in the. novel details of construction and combinationsof parts more fully hereinafter diselosed an m p}a1:ticularly pointed out in the appended c a1ms.

Referring to the accompanying drawings in which like refere1ice charaoters designate.

like patts in all the views; F1gure 1 1s a diagrammatic'side elevat1onal v1ew, partly in setstion, of a. portion of a motor vehi'cle sho'wing the pres entin- 'from the exhaust manifold Fig. 4 i's a tranSverse.sedtional view, taken approximately on the plane indicatedby the line 4-4 of Fig'. 3, looking in the dimetion of the arrows;

Fig. 5'is an enlarged detail elevational view, partly broken away, of the va.l ve for coritrolling the Passage of the exhaust ga ses member;

Fig. 6 is a sectional plan view, taken ap. proximately 011 the filane indicated by the line 66 of Fig. 5, looking dowh.;

Fig. 7 is a still further enlarged elevational view of the controllin'g valve shown in Figs. 5 and 6 es Seen froin the opposite si de Fig. 8 is a longitudinal Sectioxial elemtional view of one forni ofpush rod for controlling the valve shown in Figs. 5, 6 and 7;

Fig. 9 is an elevational view, partly broken away, of a somewhat modified form of push rod for eontrolling the said valve;

Fig. 10 is a fragm'entary longitudinal sectional view 0f the innen -e1id of the rod shown in Fig. 9;

Fig. -11 is an elevational view, partly broken away, of a somewhat modified form of heating element;

v Fig. 12 is an enlarged fragmentary detail view, partly in section and partly in elevation, of one end of the element shown in Fiq. 11; y

Fig. 13 is a transverse vertical sectional view taken. approximately on theplane indicated loy the line 1313 of Fig. 12, 100kin,q in the directionof the arrows; anti,

Fig. 14 is an enlarged fragmentary sectional plan view of a portion of the valve shown in Figs. 5, 6end7. v

In the seid drawings the numeral 20 designates generally the body of any suitable mo ton vehicle, which vehicle is ptovid-' ed witha motor 21 of the weil knowninternal comlbustion type,;having an exlmust manifold 22. The said body is also pro vided with the usual instrument or deshboard 23 to which the heatingeleri1ent 2 may be attached.

\ The seid heating element, as i's shown arts ma.y be maintained in their assembled relations, es will be readily understood.

The innerinost taube 32 is provided 011 1ts outer surfacewith a spiral flange or rib 35,

the outer edge 0f Which. is adapted to engage the inner surfa0e of the tube 30 and to thereby provide a spiral assage 36, the ends of which communicate With the hollow e11d braokets 25 a.nd 26, es Will be readily understood.

The outer surface of the pipe 01 tube 30 is preferably provided with projections 37 to assist in the radiation 0f the heat, which projections as illustrated in Fig. 30, comprise a.n integral spiral rib o1 fin, extending substantially the full length of the tube. However, it is obvious that if desired, the projections may take the form 01 concentric fins, similar to those commonly employed 011 the cylinders of air-cooled interna.l com bustion engines, 01' they ma.y take any othe1* shape which may be desired.

The outer tube 29 of the heating element is provided with a plurality of holes 01' perforations 38, to faeilitate the esca.pe of the hea.ted air fr0n'1 within the seid taube, which tube comprises a protecting sleeve 01 guard to keep the feet 0f the persons in the car from coming in direct eontact with the hob radiating tube 30.

The tubular portibns, 39 and 40 of the brackets 25 e.nd 26 are provided with th.e flanged sockets 41 and 42 respectively, by

' means of which they m'ay be secured t0 the dashboard 23, es will be dem from Figs. 1 anti 4 of the drawingS. Threaded elbows 43 extend through openings 44 in the seid dashboard and communicateviith the said tubular portions 39 and 40 of the brackets, 25 and 26, as will be readily understood, and the said elbows have com'1eqted t0 their othe1* ends, as by the clamping mea'ns 45, the flexible tubes 01 pipes 46 and 47, leading respectively from the exh.ust manifold of the motor and to the muflier or other discharge.

In order to control the passage of the hot gases from the exhaust manifold 22 to the heater, there is interpo3ed betwaan the seid exhaust manifold and the erid of t he flexible tube 46 a. suitable controllingvalve .50, which is shown in detail in Figs. 5, 6, 7 am]. 14. Thisseid valve is, or ma.y be, 0f the Wall known bi1tterfly type in which the osc illat ing valve member 51 is adapted to .be moved fro'in full open to full closed position by a movement of its controlling lever 52 through one-eighth' of a cir0le.

The movem(ants of the said va.lve are preferably controlled by mea.ns of a push rod 55, shown in detail in Fig. 8,to one end of which is connected a 1ength of piano wire 56 which asses through a taube 57, one end of Which is secured 130 the casing 58, which houses the seid push rod 55, While the other end' of the seid tube 57 is secured t0 a. bracket 59 cla.mped upon tl1e boss o1: extension 60, with whieh the casing of the valve 50 is provided, see Fig. 14. Tl1e said boss 60 may be provided with a reduced extension 61, fitting within the hub ofthe bracket '59, and a. suitable packing material 62 may,

be inferposed betwkaen the end of the reduoed extensin 61 and the bottom of the bore of the seid hab, es Will be clear fro1 n Fig. 14, which packing will act as a stuifing box to prevent the ecape of the hot gases round the valve shaft 63.

The lov;ver end of the piano W118 56 extends out of the lower end of the tube OI eaSing 57 and is suitably connected to the valve arm 52 es at 64, see Figs. 5 and 7.

The push member 56 may be of any comvenient forma, but it preferably is provided with means for adjusting tl1e valve 51 in difi'erent positions whereby the degree o1 heat may be cont rolled. As' shown in Fig. -8, this adiustment mav be accomplished by means of suitable zr0oves 65, running around the rod 55, which qrooves are adapted to receive the balls 66 which a.re normallv urg ed into engagement with tl1e seid rod 55 by means cf the springs 67.

It. thus results that when the r0d 55 is push'ed 01' pulled in one direction 01' the other b v mea.ns of its butbon or fingerpiece 68. it will be maintained in any desired D051- tion. due to the enga gement 0f the balls 66 with the grooves 65, as will be readily understood.

In the somewhat modified member, shown in Figs. 9 grooves 65 are omitted. and in lieu thereof a. Single spiral gr00ve 7 0. is eut upon tl1e 'rod 55. It thus results that when the balls 66 engage this spiral grooi e and the push rod 55 is rotated, relative fine adiustments 0f the valve member 51 ma.v be obtained, due bo the screw threading action resulting from the engagement of the seid walls with the seid spiral groove 70.

form cf push In thisform of puslx r0d it is desirable-to and 10, the

clamping devide 45 above mentioned, und

. the lower end of the .valve casing may be threaded as indicated at 73 for direct engagement'with the exhaust manifold 22, as will be readily understood.

The operat1on of the heater will be clear from the foregoing, but it ma.y be;briefly summarized as follows. When it is desired to heat the air in the body of the vehicle adjacent the driver's seat, the push rod. 55may be pulled out by band to any desiired distance, therieby through its piano wire connection 56- opening the butterfly valve member 51 a predetermined degree. This will permit the exhaust gases from the manifold 22 to pass through the flexible tube 46 to the bracket 26, and thence through the spiral assage 36 to the bracket 25, from whence they maypass by way of the flexible tube 47 t the muflier or other discharge, and be finally .exhausted to the atmosphere. In passing thro'ugh the heating device they will give up a large portion of their heat u'nits, which will raise the temperature of the tubes, and 32, and this radia.ted to the su1- heat will be eflicientl rounding air fromt e said tubes, thereby wa1ming the occupant of the vehicle.

The form of the invention showi1 in Figs. 11, 12 z'mnd 13 is gnerically the sanie as that above disclosed, bat the spiral flange has been -omitted from the inner tube 32 und the heat radiating fins or flanges 37 have been omitted from the heating taube 30.

Otherwise the construction is substantially the same as that illustrated in Figs. '1 to .4 v inclusive.

While seyeral forms of the invention have been illustrated and described, it is obvious that those skilled in the art may var'y the details of construction as well as the arrangemmt of parts with'out departing from the spirit of the invention and therefore it is not wished t0 be limited t0 the above disclosure except as may be required by the accompanying claims.

What is claimedis:

1. In an automobile heater, a pair of hollow bracket members, the outer Walls of which are provided with openings. and the inner Walls of which are provided with concentrically arranged flanges; a. pa.ir of tubes arranged between said bracket membare. an ging said flanges, whereby they are mamtained in concentric spaced relati0n; a third tubia wi thin said other tubes, extending thro uigh the openings 1n saidouter Walls; means carried by said third tube for "providing a tortuouspassage between it and thesurrounding tub e; and mea9nscarried by said thii'd tube f0r maintaining the parts in assembled relations.

.2, In an automobile heatera pair of holing an elongated spiral passage between it and the surrounding tube, said passage adm- Ihunicating with s aid hollow bracket m'embers; und means carried by said third tube formaintaining the parts in assembled relations.

3. In. an automobile heat'er. apair of hollow brapke't members, the oufier walls ('Jf which are provided with qpenin and the inner walls of which are plowide w centri cally arranged flanges; a. pair of tubes arranged between said b1acket members engaging said flanges, whereby they are-maintained in concentric spaced relat1on; a, third tube within said othpr tubes, extending through the openings in said ouber Walls; means comprismg a, ri' d spiral flange carried by said third tu%ia for providjn an elongizted spiral passagie between it an the surrounding taube, said assage communiith commaintaining the parts in assembled relations.

4. In an automobil heiter, a pair of hollow bracket members, the outer wa lls of Which are provided with openin und the inner Walls 0f which are provide with concentrically arrainged flariges; a p air of tuhes arranged between seid bracket memberS engaging said flanges, whereby they am mzzinta.ined in Concentric spaced relat1on; one ofsaid tubes being provided with heat radiating fins'; a third tube within said othef ti1bes,

extending through the openin 's in said outer walls: and means carried tube for 1n'ainta;ining the prts in assembled relations.

In testimony natura. 

